Interpretivism started as an epistemological critique of Positivism in social sciences. Interpretivists hold that there is no objective truth. Instead, people experience their own "realities". In that respect, each person's viewpoint is important to the research process, including the researcher's. Interpretivists consider the social interactions among people valuable and often attempt to study them from the inside, rather than being detached as objectivist philosophies such as critical realism and Positivism purport.